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Gulaliev Chingiz Gulalioglu Institute of Geografi, Baku, Azerbaijan ABSTRACT By experimental way is shown, that the dependence dielectric of permeability of ground from its humidity has exponential character. The comparison of settlement results with the experimental data which have been carried out on an example soil of various types, gives a good enough coordination. CONCLUSION To the basic electrophysical characteristics soil dependent concern as well her dielectric permeability , from change of such factors as importance, frequency of an electrical field, temperature, volumetric weight and so on. These dependences have the rather large practical meaning(importance), as are connected with moisture resistant of ground. The technique of spent researches allowed to remove humidity the characteristic dielectric permeability at known meanings of the basic soil properties. The range moisture from maximal hygroscopic up to bound field humidity ratio. Frequency of an electrical field was used varied within the limits of 0,4 - 10,0 . The dependences of a kind have independently, both practical, and theoretical meaning (importance) requiring(demanding) an explanation of a physical nature of the phenomena, observed in soil at passage of a variable electrical current, and revealing of behaviour of electrophysical parameters depending on change of water properties soil.  In given clause the attempt of analytical expression of dependence dielectric of permeability from humidity of ground is undertaken. As an example of figure 1 the meanings dielectric of permeability investigated by us soil are submitted depending on given moisture at fixed density and temperature. As appears from the diagrams, the increase of importance of ground promotes substantial growth her(it) . In a airily-dry condition soil poorly depend on an electrical field. Accordingly distinction hygroscopic of humidity have different meanings. Further with increase of the contents of water is naturally increased, as depending on a type of ground, and its genetic horizon. Thus, the ground which is not containing, water on dielectric parameters represents isolator.The reason of equal sizes for a firm phase of various samples soil , consists that though the ground has different mineral structure, dielectric of the characteristic of these minerals is rather close among themselves. Further increase of humidity causes changes forces communication of a moisture with soil particles, and it clearly has an effect for a course moisture of dependence . From the diagram it is visible, that dielectric the permeability researched soil with growth moisture, down to a level maximal hygroscopic of a moisture considerably grows. Thus within the limits of each sample of ground of the greater humidity corresponds also large dielectric permeability. The mathematical processing of experimental data results in expression.  Where - E - dielectric permeability at W=0. From here follows, that the communication dielectric of permeability of ground with humidity has exponential character. At a conclusion of a parity (1) the certain simplifications are admitted. So, is not taken into account, that with change of the form of communication of a moisture in process of a thickening of a water layer environmental a particles, the size dielectric of a susceptibility varies, that, however, does not break exponential of character of dependence e (W), but only has an effect for size of factors. The mathematical processing of experimental data results in expression formula (2). To not contradicting parity (1). The meanings of factors and, b, c depend on a type of ground, frequency of a variable electrical field, temperature. It is obvious, the formula (2) can be simplified at the expense of selection of factors and and b without essential change of accuracy and is given in a kind formula (3). Deviation of settlement sizes dielectric of permeability of ground from experimental meanings for various moisture and frequencies of a variable electrical field. The table on an example some soil of Ukraine (chernozem highly clayey, dark - chestnut highly clayey ), Azerbaijan (grey - brown, meadow-serous, serous -meadow, by name - meadow and others) is given, illustrates results of approximation by the formula (3) experimental dependences e(w). As follows from the table, settlement meanings dielectric of permeability (e) and its experimental meanings (e) will well be coordinated with each other, despite of heterogeneity of properties of researched objects. The results of researches are offered use delkometric methods y at the control for humidity soil.  It is possible to explain available deviations from function (3) to that the meanings of factors and and b, strictly speaking, should depend on the form of communicationof a moisture varied with increase humidity W. The mathematical processing of experimental data gives their average meanings. In accepted the models of a soil particle are not taken into account features a narrow capillary, which filling has at early stages of humidifying. In this case electrostatic component adsorption of potential owing to neutralize of action of opposite walls a capillary Reduces Decreases. In these conditions doublet of a molecule of water can freely enough be guided in an electrical field, that causes of polarization of water in the condensed condition. At filling larger capillary the reduction adsorption of potential is unsignificant. The fixation by walls capillary and surface of particles doublet of molecules of water results in reduction of rate of growth dielectric of permeability with increase of humidity. REFERENCES Gulaliev Ch.G., Geraizade A.P., Troitsky N.B. (1998). Functional estimation of electro-heat-physical parameters of the soil in aspect of multi-parametrical moisture measuring. Proceedings of 16 th World Congress of Soil Science. Montpellier, France, p.28. Troitsky N.B., Gulaliev Ch.G., Geraizade A.P. (1986). Dependence of dielectic permeability of ground from moisture measuring. In "Reports of Agricultural Academy". Moscow, 7: 39-41. |